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A Soft Switching Sinewave Pulse Modulated Inverter with Novel Pulse Regenerative Type Active Auxiliary Resonant Bridge Leg Link Snubbers
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| Author(s) |
M. Nakamura; M. Nakaoka; T. Yamazaki; M. Rukonuzzaman; E. Hiraki; S. Sato |
| Abstract |
In this paper, a novel circuit topology of the active auxiliary edge resonant snubber suitable for high
power soft switching three phase inverter applications which has some salient features as compared
with conventional auxiliary resonant pole type snubber is proposed in order to minimize the switching
power losses in addition to the switching surge related electromagnetic noises. The voltage source type
sinewave PWM inverter using new types of resonant pole snubber is discussed for utility interactive
power supply. This resonant snubber-assisted inverter topology suitable for high power conversion is
proposed and its operating principle discussed on the basis of soft switching transition and
commutation operation of the voltage source type pulse modulated inverter using this resonant pole
snubber. The operating characteristics of this active auxiliary snubber circuit are respectively
described, together with the practical design procedure of this unique edge resonant snubber.
Furthermore, the three phase soft switching sinewave PWM inverter with the novel auxiliary active
edge resonant bridge leg link snubbers treated here is implemented as experimental setup and
discussed as compared with three phase hard switching sinewave PWM inverter, along with
simulation results. |
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| Filename: | EPE-PEMC2002 - T1-013 - Nakamura.pdf |
| Filesize: | 498.3 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-05-12 by System |
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